Hp 50g Graphing Calculator Manual do Utilizador descarregar pdf (Página 632)

“SSE” TAG Tag result as SSE

» Close sub-program 4

» Close sub-program 3

» Close sub-program 2

» Close sub-program 1

» Close main program

Save this program under the name POLYR, to emphasize calculation of the

correlation coefficient r.

Using the POLYR program for values of p between 2 and 6 produce the

following table of values of the correlation coefficient, r, and the sum of square

errors, SSE:

While the correlation coefficient is very close to 1.0 for all values of p in the

table, the values of SSE vary widely. The smallest value of SSE corresponds to p

= 4. Thus, you could select the preferred polynomial data fitting for the

original x-y data as:

y = 20.92-2.61x-1.52x

2 0.9971908 10731140.01

3 0.9999768 88619.36

4 0.9999999 7.48

5 0.9999999 8.92

6 0.9999998 432.60

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Hp 50g Graphing Calculator Manual do Utilizador Página 632